Vulnerability in Elabftw
CVE-2021-41171
eLabFTW is an open source electronic lab notebook manager for research teams. In versions of eLabFTW before 4.1.0, it allows attackers to bypass a brute-force protection mechanism by using many different forged PHPSESSID values in HTTP Cookie header. This issue has been addressed by implementing brute force login protection, as recommended by Owasp with Device Cookies. This mechanism will not impact users and will effectively thwart any brute-force attempts at guessing passwords. The only correct way to address this is to upgrade to version 4.1.0. Adding rate limitation upstream of the eLabFTW service is of course a valid option, with or without upgrading.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Elabftw — versions < 4.1.0
Weakness classification (CWE)
References
- github.com/elabftw/elabftw/security/advisories/GHSA-q67h-5pc3-g6jv (Third Party Advisory)
- github.com/elabftw/elabftw/commit/8e92afeec4c3a68dc88333881b7e6307f425706b (Patch, Third Party Advisory)
- github.com/elabftw/elabftw/releases/tag/4.1.0 (Third Party Advisory, Release Notes)
- owasp.org/www-community/Slow_Down_Online_Guessing_Attacks_with_Device_Cookies (Third Party Advisory)
- www.exploit-db.com/docs/50436 (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41171?
- CVE-2021-41171 is a medium-severity vulnerability in Elabftw, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 5.9/10. Published 2021-10-22.
- How severe is CVE-2021-41171?
- Medium severity. CVSS v3 base score is 5.9 out of 10.